A coil housing drilling and milling jig

Abstract

The utility model relates to a clamp, more specifically to a coil shell drilling and milling clamp. A coil shell drilling and milling clamp, including bridge plate, the upside of bridge plate is fixed with four pad high blocks, the upside of every pad high block is fixed with two arc prongs, the coil shell that is clamped is placed on pad high block, two arc prongs respectively with the two sides of coil shell inner circle are in close contact. The top of every pad high block is provided with the press plate, and the press plate can be pressed on the upside of the coil shell. Two oil cylinders are arranged on the bridge plate, the upper end of two oil cylinders is fixed in the middle part of two press plate connecting plates respectively, and four press plates are connected in four end parts of two press plate connecting plates through inner hexagonal screw. The utility model can ensure that the position is accurate after every workpiece is clamped.

Description

Technical Field

[0001] This utility model relates to a clamp, and more specifically, a coil housing drilling and milling clamp. Background Technology

[0002] In fields such as automotive electronics and industrial automation, the coil housing serves as a critical load-bearing component of electromagnetic assemblies, and its structural precision directly impacts the performance and stability of the entire electromagnetic system. Especially for high-precision parts like the M0171350 coil housing, multiple sets of precise mounting holes and positioning slots are typically machined on its end faces and outer circumference. The dimensional and positional accuracy of these features must reach ±0.05mm to ensure the subsequent assembly accuracy with components such as the core and windings. Existing technologies cannot guarantee the accurate positioning of each workpiece after clamping, leading to quality issues in mass-produced coil housings such as misaligned holes and skewed slots. Utility Model Content

[0003] To overcome the shortcomings of the prior art, this utility model provides a coil housing drilling and milling fixture, the beneficial effect of which is that this utility model can ensure that the position of each workpiece is accurate after clamping.

[0004] A coil housing drilling and milling fixture includes a bridge plate, on the upper side of which four shims are fixed. Each shim has two arc-shaped ridges fixed on its upper side. The coil housing to be clamped is placed on the shims, and the two arc-shaped ridges are respectively in contact with the two sides of the inner ring of the coil housing.

[0005] Each of the aforementioned shims is provided with a pressure plate above it, which can press down on the upper side of the coil housing.

[0006] The bridge plate is equipped with two hydraulic cylinders, the upper ends of which are fixed to the middle of the two pressure plate connecting plates. The four pressure plates are connected to the four ends of the two pressure plate connecting plates by internal hex screws.

[0007] Each of the pressure plates has a directional post fixed to its upper side, and the directional post passes through the corresponding pressure plate connecting plate.

[0008] A brass insert is fixed to the lower side of the pressure plate.

[0009] Each of the aforementioned raised blocks is provided with a lifting ring on its outer side, and the lifting ring can be raised and lowered vertically.

[0010] All four lifting rings are fixed to a connecting frame.

[0011] A second hydraulic cylinder is fixed to the upper center of the bridge plate, and the upper end of the second hydraulic cylinder is fixed to the middle of the connecting frame.

[0012] The bridge plate is connected to the frame by screws.

[0013] The two hydraulic cylinders move synchronously. Attached Figure Description

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0015] Figure 1 A schematic diagram of the structure of a coil housing drilling and milling fixture Figure 1 ;

[0016] Figure 2 A schematic diagram of the structure of a coil housing drilling and milling fixture Figure 2 ;

[0017] Figure 3 A schematic diagram of the structure of a coil housing drilling and milling fixture Figure 3 ;

[0018] Figure 4 A schematic diagram of the structure of the brass inlay and directional post;

[0019] Figure 5 This is a schematic diagram of the coil housing.

[0020] Figure 6 A schematic diagram of a partial structure of a coil housing drilling and milling fixture. Figure 1 ;

[0021] Figure 7 A schematic diagram of a partial structure of a coil housing drilling and milling fixture. Figure 2 .

[0022] In the diagram: 1. Bridge plate; 2. Pressure plate; 3. Pressure plate connecting plate; 4. Hydraulic cylinder 1; 5. Brass inlay; 6. Directional column; 7. Frame; 8. Elevating block; 9. Lifting ring; 10. Connecting frame; 11. Hydraulic cylinder 2; 12. Arc-shaped ridge; 13. Coil housing. Detailed Implementation

[0023] like Figure 1-3 As shown in Figures 5-7;

[0024] The coil housing drilling and milling fixture includes a bridge plate 1, with four raised blocks 8 fixed to its upper side. Each raised block 8 has two arc-shaped ridges 12 fixed to its upper side. The coil housing 13 is placed on the raised blocks 8, with the two arc-shaped ridges 12 respectively fitting against the two sides of the inner ring of the coil housing 13. By setting four raised blocks 8 on the bridge plate 1 and utilizing the two arc-shaped ridges 12 on the raised blocks 8 to fit against the two sides of the inner ring of the coil housing 13, the coil housing 13 can be accurately positioned from the inside, limiting its horizontal translation and ensuring that the initial position of the coil housing 13 is accurate when placed on the raised blocks 8, providing a stable base positioning for subsequent drilling and milling.

[0025] like Figure 3-7As shown;

[0026] Since each of the raised blocks 8 is provided with a pressure plate 2 above it, the pressure plate 2 can press on the upper side of the coil housing 13; the pressure plate 2 above each raised block 8 can press on the upper side of the coil housing 13. When the coil housing 13 is positioned, the pressure plate 2 can apply pressure to it from above, firmly fixing the coil housing 13 to the raised block 8, preventing the coil housing 13 from shifting due to force during the drilling and milling process, and ensuring the positional stability during processing.

[0027] like Figure 6-7 As shown;

[0028] Because the bridge plate 1 is equipped with two hydraulic cylinders 4, the upper ends of the two hydraulic cylinders 4 are respectively fixed to the middle of the two pressure plate connecting plates 3, and the four pressure plates 2 are respectively connected to the four ends of the two pressure plate connecting plates 3 by internal hex screws; the two hydraulic cylinders 4 on the bridge plate 1 provide clamping power for the pressure plates 2. The upper ends of the hydraulic cylinders 4 are fixed to the middle of the pressure plate connecting plates 3, and the four pressure plates 2 are connected to the four ends of the two pressure plate connecting plates 3 by internal hex screws, so that when the hydraulic cylinders 4 work, they can drive the pressure plate connecting plates 3 to move, thereby synchronously driving the four pressure plates 2 to clamp or release the coil shell 13, realizing the synchronous clamping of multiple coil shells 13 and ensuring the consistency of clamping force.

[0029] like Figure 1 and 3 As shown in -4 and 6-7;

[0030] Since each of the pressure plates 2 is fixed with a directional post 6 on its upper side, and the directional post 6 passes through the corresponding pressure plate connecting plate 3; the directional post 6 on the upper side of the pressure plate 2 passes through the corresponding pressure plate connecting plate 3, during the movement of the pressure plate 2 with the pressure plate connecting plate 3, the directional post 6 can guide and restrict the movement direction of the pressure plate 2, prevent the pressure plate 2 from deviating or tilting during movement, and ensure that the pressure plate 2 can accurately press on the preset position of the coil housing 13.

[0031] like Figure 4 As shown;

[0032] Because a brass insert 5 is fixed to the lower side of the pressure plate 2. The brass insert 5 fixed to the lower side of the pressure plate 2 is in direct contact with the coil housing 13. Since brass is relatively soft, when the pressure plate 2 applies clamping force to the coil housing 13, the brass insert 5 can avoid hard contact between the pressure plate 2 and the coil housing 13, preventing the surface of the coil housing 13 from being crushed or scratched, and thus protecting the coil housing 13.

[0033] like Figure 6-7 As shown;

[0034] Since each of the raised blocks 8 is provided with a lifting ring 9 on its outer side, the lifting ring 9 can be raised and lowered vertically. After processing, the lifting ring 9 on the outer side of the raised block 8 can lift the coil shell 13 from the raised block 8, making it convenient for the operator to remove the processed coil shell 13 from the fixture, thus improving the convenience of material handling.

[0035] like Figure 6-7 As shown;

[0036] Since all four lifting rings 9 are fixed on a connecting frame 10, the movement of the connecting frame 10 can drive the four lifting rings 9 to move up and down synchronously, ensuring the consistency of the four lifting rings 9's movements and ensuring that the four coil housings 13 can be lifted simultaneously during material handling, thus improving material handling efficiency.

[0037] like Figure 6-7 As shown;

[0038] Because a hydraulic cylinder 11 is fixed to the upper center of the bridge plate 1, and the upper end of the hydraulic cylinder 11 is fixed to the middle of the connecting frame 10. The hydraulic cylinder 11 at the upper center of the bridge plate 1 provides power for the lifting ring 9 to rise and fall. The upper end of the hydraulic cylinder 11 is fixed to the middle of the connecting frame 10. When the hydraulic cylinder 11 is working, it can drive the connecting frame 10 to move up and down, and then drive the four lifting rings 9 to rise and fall synchronously through the connecting frame 10, thus realizing the automated control of the lifting ring 9's movement.

[0039] like Figure 1-3 As shown;

[0040] Because the bridge plate 1 is connected to the frame 7 by screws, this connection method can firmly fix the bridge plate 1 to the frame 7, ensuring the stability of the entire fixture during operation.

[0041] like Figure 2-3 As shown;

[0042] Because the two hydraulic cylinders 4 move synchronously, the two pressure plate connecting plates 3 can drive the four pressure plates 2 to apply the same clamping force to the coil housing 13 at the same time. This ensures that the clamping force on the four coil housings 13 is uniform and consistent, avoiding deformation or positional displacement of the coil housing 13 due to uneven clamping force, and ensuring the consistency and accuracy of the processing.

Claims

1. A coil housing drilling and milling fixture, comprising a bridge plate (1), characterized in that: Four shims (8) are fixed on the upper side of the bridge plate (1). Each shim (8) has two arc-shaped ridges (12) fixed on its upper side. The coil shell (13) is placed on the shim (8), and the two arc-shaped ridges (12) are respectively attached to the two sides of the inner ring of the coil shell (13).

2. The coil housing drilling and milling fixture according to claim 1, characterized in that: Each of the raised blocks (8) is provided with a pressure plate (2) above it, which can press against the upper side of the coil housing (13).

3. A coil housing drilling and milling fixture according to claim 2, characterized in that: The bridge plate (1) is provided with two hydraulic cylinders (4), the upper ends of the two hydraulic cylinders (4) are respectively fixed to the middle of the two pressure plate connecting plates (3), and the four pressure plates (2) are respectively connected to the four ends of the two pressure plate connecting plates (3) by internal hexagon screws.

4. A coil housing drilling and milling fixture according to claim 3, characterized in that: Each of the pressure plates (2) has a directional post (6) fixed on its upper side, and the directional post (6) passes through the corresponding pressure plate connecting plate (3).

5. A coil housing drilling and milling fixture according to claim 4, characterized in that: A brass insert (5) is fixed to the lower side of the pressure plate (2).

6. A coil housing drilling and milling fixture according to claim 5, characterized in that: Each of the raised blocks (8) is provided with a lifting ring (9) on its outer side, which can be raised and lowered vertically.

7. A coil housing drilling and milling fixture according to claim 6, characterized in that: All four lifting rings (9) are fixed on a connecting frame (10).

8. A coil housing drilling and milling fixture according to claim 7, characterized in that: A second hydraulic cylinder (11) is fixed at the upper center of the bridge plate (1), and the upper end of the second hydraulic cylinder (11) is fixed at the middle of the connecting frame (10).

9. A coil housing drilling and milling fixture according to claim 8, characterized in that: The bridge plate (1) is connected to the frame (7) by screws.

10. A coil housing drilling and milling fixture according to claim 9, characterized in that: The two hydraulic cylinders (4) move synchronously.

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